Delta employees have apparently been harassed at their homes, incurring a voice message to the employees from CEO Richard Anderson directing them to call the cops for help if they feel threatened. Some employees have charged that organizers for the International Association of Machinists and Aerospace Workers have frightened their children and spouses, and even blocked driveways, not allowing residents to leave their homes. “Conduct like this is harassment. It’s wrong,” Anderson said. “This is not how we treat people at Delta.” IAM officials deny the charge (of course). When Northwest Airlines was acquired by Delta in a 2008 merger, IAM organizers were energized to attempt to bring the Delta ground workers and flight attendants into the union fold. Similar employees had been unionized at Northwest, but not at Delta. IAM organizers were just handed a major helping hand in their efforts by the recent National Mediation Board rule changes.